Commentaries of the Four Authorized Vaisnava Sampradayas

Now Lord Krishna gives the antidote to avoid being controlled by kama or
lust. For the novice practitioner the advice is to immediately by strength
of mind control the sense in the very beginning before being deluded. For
one more advanced knowledge of Vedic scriptures can assist one in evading
being controlled by kama. For one even more advanced knowledge of the atma
or soul and one's true position can protect one from the ravages of kama.
Or it can also denote accepting a spiritual master who is transcendant to
kama and receiving relevant instructions to fortify oneself or by means of
meditation on the Supreme Lord. In the Brihadaranyaka Upanisad IV.IV.XXI it
states: The intelligent aspirant's understanding should achieve intuitive
knowledge.

Brahma Vaisnava Sampradaya:

Madhvacarya

Madhvacarya's Commentary

By controlling the stations where kama or lust resides it can be eradicated
but Lord Krishna is giving special instructions that kama must be
restrained within the senses at the very beginning well before they are
able to make contact with the objects of the senses.

Now begins the summation.

The Supreme Lord Krishna is the maintainer and energiser of everything in
creation. His authorised avatars and expansions are His parts and parcels.
All other Gods without any exception are mere subsidiaries of His
expansions and these other gods descend downwards from Brahma. Demons and
asuras or those possessing no inner light are continuously being degraded
by kama and mixed with their arrogance arouse great evil. The demoniac are
the most deluded and degraded of all living beings. The least influenced by
kama like smoke covering fire are the noble and righteous beings. The next
more influenced by kama like dust covering a mirror are those of mixed
natures sometimes aware of their actions and sometimes not. The most
influenced by kama like an embryo imprisoned in the womb are the are
demonic who are great evil doers. Like Agni or fire kama is also all
devouring that is why it called analena or fire. Therefore kama residing in
the senses it can be restrained and destroyed only by the weapon of Vedic
wisdom. Kama envelopes the mind and intellect prior to atma tattva or soul
realisation; but even after atma tattva is achieved it has been seen that
kama is so powerful that it is able to exert its influence as kama is never
satiated and thus vigilance is still required before moksa or complete
release from the material existence has been attained.

Sri Vaisnava Sampradaya:

Ramanuja

Ramanuja's Commentary

One who is interested in qualifying for jnana yoga or the cultivation of
Vedic knowledge must restrain the natural out going tendency of the five
senses from pursuing sense objects. But the mighty enemy kama or lust
covertly causes dissent in the enquiring of atma tattva or realisation of
the soul and contrarily causes enthusiasm for procuring the delights of the
senses. One understanding that the senses operate in their own natural
sphere within the physical body, directs them to perform the appropriate
occupational duties according to ones rank and station in life in karmayoga or the performance of prescribed Vedic activities and thus the senses
are constrained. Lord Krishna thus gives the key to vanquishing this great
enemy known as kama which is so terrible and which destroys both jnana or
spiritual knowledge and vijnana or spiritual wisdom.

Kumara Vaisnava Sampradaya:

Nimbaditya

Kesava Kasmiri's Commentary

Now Lord Krishna explains how to restrain kama or lust which
is so terrible and destructive to the consciousness and
development of a human being and which is the root of all
evils because it obscures true knowledge arising from the
teachings of the spiritual master which lead to inner wisdom
which arises from meditation and reflection on the Supreme
Lord. One must withdraw the senses away from the sense objects
at the very beginning before they have contact and remain
resolute with a steady mind.